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    SWITCHABLE PARALLEL CONFIGURATIONS FOR MODULAR BATTERY SYSTEM
    12.
    发明申请
    SWITCHABLE PARALLEL CONFIGURATIONS FOR MODULAR BATTERY SYSTEM 有权

    公开(公告)号：US20250015610A1

    公开(公告)日：2025-01-09

    申请号：US18348051

    申请日：2023-07-06

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Andrew P. Oury ,  Brendan M. Conlon

    IPC: H02J7/00 ,  B60L58/22

    Abstract: A modular battery system includes a battery pack with multiple battery modules electrically interconnected via a plurality of electrical cables. A plurality of switches selectively connects the multiple battery modules. A direct current (DC) charge connector is configured to electrically connect the battery pack to an off-board DC fast-charging station, via the plurality of electrical cables. The pack circuit is adapted to switch between a first configuration and a second configuration based on a respective position of the plurality of switches. A controller is configured to select the respective position of each of the plurality of switches to transition the pack circuit between the first configuration and the second configuration, in response to input signals indicative of a requested operating mode of the battery pack. The first configuration provides three parallel electrical pathways, and the second configuration provides two parallel electrical pathways.

    Electric powertrain with multi-pack battery system
    13.
    发明授权
    Electric powertrain with multi-pack battery system 有权

    公开(公告)号：US11358486B2

    公开(公告)日：2022-06-14

    申请号：US16571519

    申请日：2019-09-16

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shifang Li ,  William T. Ivan ,  Brendan M. Conlon ,  Yue Fan

    IPC: B60L53/62 ,  H02P5/74 ,  H02J7/00 ,  B60L58/12 ,  B60L58/19 ,  B60L50/50 ,  B60K1/04 ,  B60L58/22 ,  B60L53/22 ,  B60L53/16 ,  B60L53/18

    Abstract: A multi-pack battery system having at least first and second battery packs each with positive and negative terminals, and each with upper and lower switches respectively connected to the positive and negative terminals. The battery packs have a first voltage level, and are connectable in either series or parallel. A controller controls an ON/OFF state of the switches in response to input signals to select between two series charging modes, three parallel charging modes, and one or more propulsion modes. Some embodiments have a series propulsion mode. An electric powertrain system includes first and second power inverter modules (“PIMs”), an electrical load, front and rear electric machines connected to a respective one of the first and second PIMs, and the battery system. The powertrain system may selectively provide all-wheel, front-wheel, or rear-wheel drive capabilities in each of the various propulsion modes.

    MODULAR BATTERY PACK SYSTEM WITH SERIES AND PARALLEL CHARGING AND PROPULSION MODES
    14.
    发明申请
    MODULAR BATTERY PACK SYSTEM WITH SERIES AND PARALLEL CHARGING AND PROPULSION MODES 审中-公开

    公开(公告)号：US20190283611A1

    公开(公告)日：2019-09-19

    申请号：US15920899

    申请日：2018-03-14

    Applicant: GM Global Technology Operations LLC

    Inventor： Brendan M. Conlon ,  Martin M. Freedman

    IPC: B60L11/18 ,  H02P5/74 ,  B60L3/00

    Abstract: A modular battery pack system includes a battery pack and controller. The battery pack has first and second battery modules interconnected via electrical cables, with each module having a battery cell string. The pack has first, second, and third electrical connectors and four switches that selectively connect the strings to one or more of the electrical connectors. A DC charging connector is electrically connected to one of the cables between the first electrical connectors of the battery modules, and electrically connects the pack to an off-board DC fast-charging station. In response to input signals corresponding to a requested mode, the controller commands an open/closed state of each of the switches, via switching control signals, to establish a series charge mode, a parallel charge mode, and one or more of a series and/or parallel drive mode of the battery pack. A motor vehicle includes the system.

    Onboard DC charging circuit using traction drive components
    15.
    发明授权
    Onboard DC charging circuit using traction drive components 有权

    公开(公告)号：US10369900B1

    公开(公告)日：2019-08-06

    申请号：US15899419

    申请日：2018-02-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brendan M. Conlon

    IPC: B60L53/30 ,  H02J7/00 ,  B60L58/12 ,  B60L53/20 ,  B60L53/14

    CPC classification number: B60L53/30 ,  B60L53/14 ,  B60L53/20 ,  B60L58/12 ,  H02J7/0004 ,  H02J7/0021 ,  H02J7/0027

    Abstract: A DC charging circuit has a pair of switches and a battery pack with a maximum voltage capacity, and a power inverter module (PIM). The pair of switches connects/disconnects the battery pack to/from the PIM. An electric machine has phase windings sharing a motor neutral terminal. The phase windings are electrically connected to respective switching pair of the PIM. A switching module has one or two additional switches selectively connecting the PIM to the station, and a center switch selectively connecting the station to the motor neutral terminal. A controller executes a method that establishes a boost mode of the PIM when the maximum voltage capacity exceeds the maximum charging voltage. The boost mode is established by closing the pair of switches of the RESS, closing the center switch of the switching module and one of the additional switches, and opening the other additional switch if present.

    Method and apparatus for controlling a powertrain system including multiple torque-generative devices
    17.
    发明授权
    Method and apparatus for controlling a powertrain system including multiple torque-generative devices 有权
    用于控制包括多个扭矩产生装置的动力系统的方法和装置

    公开(公告)号：US09545913B2

    公开(公告)日：2017-01-17

    申请号：US14663550

    申请日：2015-03-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Shaun C. Bowman ,  Poh Fong Chin ,  Jeremy Wise ,  Brendan M. Conlon

    IPC: B60W20/40 ,  B60W10/115 ,  B60W10/08 ,  B60W10/06 ,  B60W20/00

    CPC classification number: B60W20/10 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W20/20 ,  B60W20/40 ,  B60W30/188 ,  B60W2510/0676 ,  B60W2510/081 ,  B60W2540/10 ,  B60W2710/083 ,  B60W2710/1005 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y10S903/93 ,  Y10T477/23

    Abstract: A powertrain system includes an internal combustion engine having a crankshaft that fixedly couples to an input member of a multi-mode transmission including first and second torque machines. The transmission operates in one of a plurality of fixed-gear modes and variable modes through selective activation of first and second clutches. A control method includes, in response to a command to operate the multi-mode transmission in a fixed-gear mode, activating only the first clutch and commanding the engine to an OFF state. The first torque machine is controlled to generate a first torque output responsive to a drag torque that is offset by an engine reactive torque with the engine in the OFF state. The transmission operates in the fixed-gear mode by controlling the second torque machine to generate a second torque output responsive to an operator torque request and the first torque output of the first torque machine.

    Abstract translation: 动力系统包括具有固定地耦合到包括第一和第二扭矩机的多模变速器的输入构件的曲轴的内燃机。 通过选择性地激活第一和第二离合器，变速器以多个固定齿轮模式和可变模式中的一个运行。 控制方法包括响应于以固定档模式操作多模变速器的命令，仅启动第一离合器并且将发动机命令为OFF状态。 第一扭矩机被控制以响应于由发动机处于OFF状态的发动机反作用转矩而被偏移的拖曳扭矩产生第一扭矩输出。 通过控制第二扭矩机以响应于操作者扭矩请求和第一扭矩机的第一扭矩输出而产生第二扭矩输出，变速器以固定齿轮模式运行。

    ELECTRIC VEHICLE RECHARGE CONTROL
    19.
    发明公开
    ELECTRIC VEHICLE RECHARGE CONTROL 审中-公开

    公开(公告)号：US20240253523A1

    公开(公告)日：2024-08-01

    申请号：US18159727

    申请日：2023-01-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brendan M. Conlon ,  Zhijian J. Wu

    IPC: B60L58/19 ,  B60L3/00 ,  B60L58/22 ,  H02J7/00

    CPC classification number: B60L58/19 ,  B60L3/0046 ,  B60L58/22 ,  H02J7/0024

    Abstract: An electric vehicle includes a reconfigurable energy storage system with a first submodule and a second submodule. An interface circuit is operable to transfer a charging power to the reconfigurable energy storage system from a charging station that is external to the electric vehicle. A switching circuit is operable to electrically arrange the first submodule and the second submodule in series or in parallel. A diode is operable to convey the charging power between the first submodule and the second submodule while the reconfigurable energy storage system is arranged in series and the charging power is present. A bias circuit is operable to maintain a reverse bias across the diode while the reconfigurable energy storage system is arranged in series and the charging power is absent.

    Two-speed electric drive-unit
    20.
    发明授权
    Two-speed electric drive-unit 有权

    公开(公告)号：US10920859B2

    公开(公告)日：2021-02-16

    申请号：US16511434

    申请日：2019-07-15

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brendan M. Conlon ,  Alan G. Holmes

    IPC: F16H3/66 ,  F16H3/76 ,  F16H3/72 ,  B60K6/365 ,  B60K1/00 ,  B60K7/00

    Abstract: An electric drive-unit encased in a housing includes an electric motor, a first output member, and a second output member. The drive-unit also includes first, second, and third planetary gear-sets, each having first, second, and third nodes. The first gear-set has one node connected to the electric motor. The second gear-set has one node connected to the first planetary gear-set, another node connected to the first output member, and the remaining node fixed to the housing. The third gear-set has one node connected to the first gear-set and another node connected to the second output member. The drive-unit additionally includes a first torque-transmitting device configured to selectively connect one third gear-set node to the housing to thereby affect a first speed-ratio. Furthermore, the drive-unit includes a second torque-transmitting device configured to selectively connect one first gear-set node to one of the third gear-set nodes to thereby affect a second speed-ratio.

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